<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<meta name="viewport" content="width=device-width,initial-scale=1,minimum-scale=1,maximum-scale=1,user-scalable=no" />
		<title>案例3.1</title>
		<style>
			*{
				margin: 0;
				padding: 0;
			}
			.demo{
				display: flex;
				align-items: center;
				justify-content: space-between;
				border: 1px solid #000;
				height: 60px;
				padding: 0 10px;
			}
		</style>
	</head>
	<body>
		<div class="demo">
			<div>啊啊</div>
			<div>啊啊</div>
		</div>
	</body>
</html>